Prime Minister Najib Abdul Razak said he has regular "heart-to-heart" talks with his deputy Muhyiddin Yassin and appreciates his opinions.

"I spoke to him heart-to-heart this morning and I gave my commitment towards having regular discussions, heart-to-heart, to ensure that the Umno leadership is always comfortable and solid.

"This is to prevent (detractors) from trying to split us apart, especially me and the deputy president," Najib told reporters during a rare press conference today.

Earlier today, Najib had chaired a meeting with Umno division leaders and another meeting with Umno supreme council members in conjunction with the party's 69th anniversary at PWTC, Kuala Lumpur.

Prior to the meeting, former information minister Zainuddin Maidin wrote on his blog that party insiders told him to expect a revolt during the two meetings.

"Thus the people who were spreading rumours before our meeting, they will be disappointed," said Najib.

Muhyiddin has been increasingly vocal against the 1Malaysia Development Bhd controversy, most recently stating in Milan, Italy that the issue was among the reasons for BN's poor performance during the Permatang Pauh by-election.

He claimed that 1MDB - Najib's brainchild - had put BN on the backfoot and the coalition had trouble explaining the issue to voters.

Muhyiddin also appear to be against Tabung Haji's attempts to buy a plot of land from 1MDB, over fears that it might be perceived as a bailout.